Double-faced .925 Sterling Silver Acrylic Simulated Pearl Beads & Cz Crystals Stud Earring Pair METAL: .925 sterling silver (Hypoallergenic) STYLE: Ivory & Cubic Zirconia- Double-faced faux Pearl & Cz Crystal Stud Earrings Pair FRONT STUD: 8mm BACK STUD: 16mm A must have for your earring collection!